How to make painting finish metal eyewear more firm and compact？

**Aoker eyewear** · 10-23-2016, 01:32 AM

As we understand generally plating finish metal eyewear more firm and compact than the painting finish metal eyewear. According the disadvantages, how to make painting metal eyewear more firm and compact?

Normally, before metal eyewear painting processing, it should be plated a layer of chrome finish first, it can make painting metal eyewear as firm and compact as plating finish metal eyewear.

Chrome finish divide into white chrome and black-chrome finish. Black or matt black metal eyewear used black chrome finish; other painting metal eyewear used white chrome finish. To take an example, White, Red, Blue, Green, Purple, Yellow etc…

Why chrome finish can make painting finish metal eyewear as firm and compact as plating finish metal eyewear?

This is because chrome finished metal eyewear surface can form a honeycomb-like structure, which greatly improved the adhesion of painting on metal eyewear. Below picture under microscope for reference.

Click image for larger version.

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**JERRY HUANG** · 10-23-2016, 02:41 AM

No nickel base plating before white chrome?

**Aoker eyewear** · 10-23-2016, 11:17 AM

It’s ok use nickel base plating, nickel base plating isolate steel from air, stainless steel surface won’t generate a passive film, after nickel preplating, apply other plating colors, for sure the plating on metal eyewear will be more firm and compact.

But take consideration of wearer health, I suggest won’t use nickel plating base. since nickel plating may cause skin allergy.